Self drilling tapping screw



FIG. 1 is a perspective view of a self drilling tapping screw showing my new design.

FIG. 2 is a front view thereof.

FIG. 3 is a rear view thereof.

FIG. 4 is a side view thereof.

FIG. 5 is a bottom view thereof.

FIG. 6 is a top view thereof; and,

FIG. 7 is an enlarged view of the self drilling tapping screw taken from the indication circle of FIG. 1.

The broken lines in the drawings illustrate portions of the self drilling tapping screw and form no part of the claimed design. 

CLAIM The ornamental design for a self drilling tapping screw, as shown and described. 